CN105403259A - High-precision intelligent gas meter - Google Patents
High-precision intelligent gas meter Download PDFInfo
- Publication number
- CN105403259A CN105403259A CN201510726324.8A CN201510726324A CN105403259A CN 105403259 A CN105403259 A CN 105403259A CN 201510726324 A CN201510726324 A CN 201510726324A CN 105403259 A CN105403259 A CN 105403259A
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- China
- Prior art keywords
- gas
- gas flow
- voltage signal
- flow rate
- analog
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides a high-precision intelligent gas meter. The high-precision intelligent gas meter includes a gas meter cavity, a gas flow velocity sensor, an A/D converter, a pressure sensor, a temperature sensor, and a controller; wherein the gas meter cavity includes a gas inlet end, a gas outlet end, and a measurement pipeline, and the gas inlet end and the gas outlet end are provided with a solenoid valve respectively; the gas flow velocity sensor is used for converting the gas flow velocity into an analog voltage signal by adoption of a silicon crystal oscillator film; the A/D converter is used for converting the analog voltage signal into a digital voltage signal; the pressure sensor is used for measuring the pressure; the temperature sensor is used for collecting the temperature; and the controller is used for restoring the gas flow velocity according to the digital voltage signal, acquiring a first gas flow according to the collecting interval time of the gas flow velocity and the digital voltage signal, calculating a second gas flow according to the pressure and the temperature, utilizing the second gas flow to correct the first gas flow to obtain an accumulated gas flow, and controlling the two solenoid valves to close when the accumulated gas flow exceeds a pre-stored gas volume. The high-precision intelligent gas meter can improve the measuring precision.
Description
Technical field
The present invention relates to gas meter, flow meter technical field, particularly relate to a kind of high-precision intelligent gas meter, flow meter.
Background technology
In gas meter, flow meter field, existing gas meter, flow meter is divided into mechanical gas table and electronic gas table.Mechanical gas table adopts mechanical drive principle, and its measuring accuracy depends on manufacturing accuracy and the assembly precision of mechanical component, causes measuring accuracy not high, discreteness is larger, and mechanical component have wearing and tearing along with passage of time, cause measuring accuracy to decline in time, the time, longer error was more obvious.Electronic gas table is then the flow velocity being carried out indirect inspection fluid by the co-current flow and counter-current flow propagation time difference of observation ultrasound wave in measuring channel, but, the uncertainty that electronic gas table is installed can bring comparatively big error to flow measurement, measuring channel fouling can have a strong impact on accuracy of measurement, and serviceable life is short, precision generally can only keep 1 year, and in addition, the cost of electronic gas table is higher.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of high-precision intelligent gas meter, flow meter, can improve measuring accuracy.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of high-precision intelligent gas meter, flow meter, comprise gas meter cavity, gas flow rate sensor, analog to digital converter, pressure transducer, temperature sensor and controller, described gas meter cavity comprises inlet end, outlet side be connected described inlet end, the measuring channel of described outlet side, described inlet end is provided with the first solenoid valve, described outlet side is provided with the second solenoid valve, it is inner that described gas flow rate sensor and described pressure transducer are located at described measuring channel, described analog to digital converter, temperature sensor and described controller are located in described gas meter cavity, wherein, gas flow rate is converted to analog voltage signal for adopting silicon wafer diaphragm mode by described gas flow rate sensor, described analog to digital converter is connected with described gas flow rate sensor, for gathering described analog voltage signal and described analog voltage signal being converted to digital voltage signal, described pressure transducer is for measuring the pressure in described measuring channel, described temperature sensor is for gathering the temperature in described gas meter cavity, described controller is connected with temperature sensor with described analog to digital converter, pressure transducer, for reducing gas flow rate according to described digital voltage signal, the acquisition interval time according to the gas flow rate after reduction and described digital voltage signal obtains the first gas flow, and according to described pressure and described temperature computation second gas metering, utilize described second gas metering to carry out calibration to described first gas metering and obtain accumulative gas metering, described accumulative gas flow exceed prestore tolerance time, control described first solenoid valve and described second closed electromagnetic valve.
Be different from the situation of prior art, the invention has the beneficial effects as follows: utilize gas flow rate sensor to measure gas flow rate, and then obtain the first gas flow, and utilize pressure transducer and temperature sensor to calculate the second gas metering, utilize the second gas metering to carry out calibration to a gas metering and obtain accumulative gas metering, control the closedown of the first solenoid valve and the second solenoid valve according to the tolerance that prestores, thus can measuring accuracy be improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention high-precision intelligent gas meter, flow meter.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
See Fig. 1, it is the structural representation of embodiment of the present invention high-precision intelligent gas meter, flow meter.High-precision intelligent gas meter, flow meter comprises gas meter cavity 1, gas flow rate sensor 2, analog to digital converter 3, pressure transducer 4, temperature sensor 5 and controller 6, gas meter cavity 1 comprises inlet end 11, outlet side 12 be connected inlet end 11, the measuring channel 13 of outlet side 12, inlet end 11 is provided with the first solenoid valve 14, outlet side 12 is provided with the second solenoid valve 15, it is inner that gas flow rate sensor 2 and pressure transducer 4 are located at measuring channel 13, analog to digital converter 3, temperature sensor 5 and controller 6 are located in gas meter cavity 1, wherein, gas flow rate is converted to analog voltage signal for adopting silicon wafer diaphragm mode by gas flow rate sensor 2, analog to digital converter 3 is connected with gas flow rate sensor 2, for gathering analog voltage signal and analog voltage signal being converted to digital voltage signal, pressure transducer 4 is for measuring the pressure in measuring channel, temperature sensor 5 is for gathering the temperature in gas meter cavity 1, controller 6 is connected with temperature sensor 5 with analog to digital converter 3, pressure transducer 4, for reducing gas flow rate according to digital voltage signal, the acquisition interval time according to the gas flow rate after reduction and digital voltage signal obtains the first gas flow, and according to pressure and temperature computation second gas metering, utilize the second gas metering to carry out calibration to the first gas metering and obtain accumulative gas metering, accumulative gas flow exceed prestore tolerance time, control the first solenoid valve 14 and the second solenoid valve 15 cuts out.
By the way, the high-precision intelligent gas meter, flow meter of the embodiment of the present invention utilizes gas flow rate sensor to measure gas flow rate, and then obtain the first gas flow, and utilize pressure transducer and temperature sensor to calculate the second gas metering, utilize the second gas metering to carry out calibration to a gas metering and obtain accumulative gas metering, control the closedown of the first solenoid valve and the second solenoid valve according to the tolerance that prestores, thus can measuring accuracy be improved.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (1)
1. a high-precision intelligent gas meter, flow meter, it is characterized in that, comprise gas meter cavity, gas flow rate sensor, analog to digital converter, pressure transducer, temperature sensor and controller, described gas meter cavity comprises inlet end, outlet side be connected described inlet end, the measuring channel of described outlet side, described inlet end is provided with the first solenoid valve, described outlet side is provided with the second solenoid valve, it is inner that described gas flow rate sensor and described pressure transducer are located at described measuring channel, described analog to digital converter, temperature sensor and described controller are located in described gas meter cavity, wherein, gas flow rate is converted to analog voltage signal for adopting silicon wafer diaphragm mode by described gas flow rate sensor, described analog to digital converter is connected with described gas flow rate sensor, for gathering described analog voltage signal and described analog voltage signal being converted to digital voltage signal, described pressure transducer is for measuring the pressure in described measuring channel, described temperature sensor is for gathering the temperature in described gas meter cavity, described controller is connected with temperature sensor with described analog to digital converter, pressure transducer, for reducing gas flow rate according to described digital voltage signal, the acquisition interval time according to the gas flow rate after reduction and described digital voltage signal obtains the first gas flow, and according to described pressure and described temperature computation second gas metering, utilize described second gas metering to carry out calibration to described first gas metering and obtain accumulative gas metering, described accumulative gas flow exceed prestore tolerance time, control described first solenoid valve and described second closed electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510726324.8A CN105403259A (en) | 2015-10-30 | 2015-10-30 | High-precision intelligent gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510726324.8A CN105403259A (en) | 2015-10-30 | 2015-10-30 | High-precision intelligent gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105403259A true CN105403259A (en) | 2016-03-16 |
Family
ID=55468889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510726324.8A Pending CN105403259A (en) | 2015-10-30 | 2015-10-30 | High-precision intelligent gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105403259A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831132A (en) * | 2018-06-13 | 2018-11-16 | 合肥托卡拉图科技有限公司 | A kind of remote fuel gas reading intelligence control system and its implementation |
| CN113970366A (en) * | 2021-11-01 | 2022-01-25 | 成都千嘉科技有限公司 | Calibration method and system for gas flow metering device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350119A (en) * | 2008-09-12 | 2009-01-21 | 王兴昆 | Management method and system capable of using gas with time and quantity limit |
| CN102809400A (en) * | 2011-05-31 | 2012-12-05 | 新奥科技发展有限公司 | Gas meter |
| CN204556044U (en) * | 2015-04-16 | 2015-08-12 | 天津市承刚科技发展有限公司 | A kind of Anti-seismic IC-card intelligence prepayment diaphragm gas meter |
| CN104949725A (en) * | 2015-06-25 | 2015-09-30 | 苏州市英富美欣科技有限公司 | Gas flow collection device based on temperature and pressure intensity compensation |
-
2015
- 2015-10-30 CN CN201510726324.8A patent/CN105403259A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101350119A (en) * | 2008-09-12 | 2009-01-21 | 王兴昆 | Management method and system capable of using gas with time and quantity limit |
| CN102809400A (en) * | 2011-05-31 | 2012-12-05 | 新奥科技发展有限公司 | Gas meter |
| CN204556044U (en) * | 2015-04-16 | 2015-08-12 | 天津市承刚科技发展有限公司 | A kind of Anti-seismic IC-card intelligence prepayment diaphragm gas meter |
| CN104949725A (en) * | 2015-06-25 | 2015-09-30 | 苏州市英富美欣科技有限公司 | Gas flow collection device based on temperature and pressure intensity compensation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108831132A (en) * | 2018-06-13 | 2018-11-16 | 合肥托卡拉图科技有限公司 | A kind of remote fuel gas reading intelligence control system and its implementation |
| CN113970366A (en) * | 2021-11-01 | 2022-01-25 | 成都千嘉科技有限公司 | Calibration method and system for gas flow metering device |
| CN113970366B (en) * | 2021-11-01 | 2024-01-26 | 成都千嘉科技有限公司 | Calibration method and system for gas flow metering device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |